Philips-MCD-703-Service-Manual(1) 电路图 维修手册.pdf
Version 1.1 MCD703 3141 785 30931 Service Manual DVD Micro System all versions Published by LX 0610 Service Audio Printed in The Netherlands Subject to modification Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Handling chip components .1-1 Information about lead-free soldering.1-2 Technical specification.2-1 Service tools.2-1 Service measurement setup.2-2 Connections and controls.3-1.3-3 Troubleshooting.3-4.3-5 Disassembly diagram.4-1.4-2 Software version and upgrading.5-1 Set block diagram.5-2 Set wiring diagram.5-3 VFD / KEY BOARD ASSEMBLY circuit diagram .6-1 layout diagram.6-2 TUNER BOARD circuit diagram .7-1 layout diagram.7-2 DVD BLOCK circuit diagram .8-1 layout diagram.8-2 AMP BLOCK circuit diagram .9-1 layout diagram.9-2 DVD MPEG BOARD circuit diagram.10-1.10-5 layout diagram.10-6 Exploded view diagram.11-1 Mechanical partslist.11-2 Electrical partslist.12-1.12-3 Revision list.13-1 TABLE OF CONTENTS CLASS 1 LASER PRODUCT RadioFans.CN 收音机爱 好者资料库 1 - 1 HANDLING CHIP COMPONENTS RadioFans.CN 收音机爱 好者资料库 1 - 2 INFORMATION ABOUT LEAD-FREE SOLDERING Philips CE is producing lead-free sets from 1.1.2005 onwards. IDENTIFICATION: Regardless of special logo (not always indicated) one must treat all sets from 1 Jan 2005 onwards, according next rules: Example S/N: Bottom line of typeplate gives a 14-digit S/N. Digit 5&6 is the year, digit 7&8 is the week number, so in this case 2005 wk12 So from 0501 onwards = from 1 Jan 2005 onwards Important note : In fact also products of year 2004 must be treated in this way as long as you avoid mixing solder-alloys ( leaded/ lead -free). So best to always use SAC305 and the higher temperat ures belong to this. Due to lead-free technology some rules have to be respected by the workshop during a repair: Use only lead-free solder alloy Philips SAC305 with order code 0622 149 00106. If lead-free solder-paste is required, please contact the manufacturer of your solder-equipment. In general use of solder-paste within workshops should be avoided because paste is not easy to store and to handle. Use only adequate solder tools applicable for lead-free solder alloy. The solder tool must be able o To reach at least a solder-temperature of 40 o To stabilize the adjusted temperature at the solder-tip o To exchange solder-tips for different applications. Adjust your solder tool so that a temperature around is reached and stabilized at the solder joint. Heating-time of the solder-joint should not exceed 4 sec. Avoid temperatures above 400 otherwise wear-out of tips will rise drastically and flux-fluid will be destroyed. To avoid wear-out of tips switch off un-used equipment, or reduce heat. Mix of lead-free solder alloy / parts with leaded solder alloy / parts is possible but PHILIPS recommends strongly to avoid mixed solder alloy types (leaded and lead-free). If one cannot avoid or does not know whether product is lead-free, clean carefully the solder-joint from old solder alloy and re-solder with new solder alloy (SAC305). Use only original spare-parts listed in the Service-Manuals. Not listed standard-material (commodities) has to be purchased at external companies. Special information for BGA-ICs: - always use the 12nc-recognizable soldering temperature profile of the specific BGA (for de-soldering always use the lead-free temperature profile, in case of doubt) - lead free BGA-ICs will be delivered in so-called dry-packaging (sealed pack including a silica gel pack) to protect the IC against moisture. After opening, dependent of MSL-level seen on indicator-label in the bag, the BGA-IC possibly still has to be baked dry. (MSL=Moisture Sensitivity Level). This will be communicated via AYS-website. Do not re-use BGAs at all. For sets produced before 1.1.2005 (except products of 2004), containing leaded solder-alloy and components, all needed spare-parts will be available till the end of the service-period. For repair of such sets nothing changes. On our website www.atyourservice.ce.P you find more information to: BGA-de-/soldering (+ baking instructions) Heating-profiles of BGAs and other ICs used in Philips-sets You will find this and more technical information within the magazine, chapter workshop news. For additional questions please contact your local repair-helpdesk. SERVICE INSTRUCTION 1. Unplug the AC Power cord and connect a wire between the two pins of the AC Power plug. 2. Set the AC Power switch to the on position (keep the AC Power cord unplugged!). 3. Measure the resistance value between the pins of the AC Power plug and the metal shielding of the tuner or the aerial connection on the set. The reading should be larger than 4.5 Mohm (For U.S. it should be between 4.2 Mohm and 12 Mohm). 4. Switch off the set, and remove the wire between the two pins of the AC Power plug. Safety regulations require that after a repair, the set must be returned in its original condition. Pay in particular attention to the following points: Route the wire trees correctly and fix them with the mounted cable clamps. Check the insulation of the AC Power lead for external damage. Check the strain relief of the AC Power cord for proper function. Check the electrical DC resistance between the AC Power Plug and the secondary side (only for sets which have a AC Power isolated power supply): Check the cabinet for defects, to avoid touching of any inner parts by the customer. RadioFans.CN 收音机爱 好者资料库 2 - 1 GENERAL Mains voltage -/98/55 -/98/55 : 120 / 230 V -/37 -/37 : 120V Mains frequency : 50 / 60 Hz : 60 Hz Battery for remote : 3V (R03, AAA x 2) Power consumption Max. : < 37 W (max.) Standby : < 5 W ECO : < 1 W Dimension (W x H x D) DVD Part DVD Part : 208 x 62 x 244 mm AMP Part : 208 x 57 x 244 mm Weight : 1.4 Kg AMP Part : 3.1 Kg AMPLIFIER Output power : 2 x 22 W RMS Subwoofer Subwoofer Subwoofer : 1 x 50 W Speaker impedance : 2 x 8 ohm : 1 x 8 ohm Frequency response : 100 Hz - 20 kHz (3dB) : 40 Hz - 180 Hz (3dB) Aux input sensitivity : 350 mV (600 ohm) TUNER - FM SECTION Tuning range 100kHz : 87.5 - 108 MHz IF frequency : 10.7 MHz 0.02 MHz Sensitivity : 22 dBf at 26dB S/N Selectivity : 20 dB at 300kHz IF rejection : 50 dB Image rejection : 20 dB TUNER - AM SECTION Tuning range MW(9 kHz) : 531 - 1602 kHz AM(10 kHz) : 520 - 1710 kHz IF frequency : 450 kHz 1 kHz Sensitivity MW : Selectivity MW : 16 dB IF rejection MW : 24 dB Image rejection MW : 20 dB DVD / MP3 / CD Laser Type : Semiconductor Disc Diameter : 12cm / 8cm Video Decoding : MPEG-2 / MPEG-1 Signal System : PAL / NTSC Video S/N : 53 dB (min.) Composite Video Output : 1.0 Vp-p, 75 S-Video Output : Y - 1.0 Vp-p, 75 C - 0.286 Vp-p, 75 Audio DAC : 24 Bits / 96 kHz Frequency Response : 4 Hz - 20 kHz (44.1kHz) 4 Hz - 22 kHz (48kHz) 4 Hz - 44 kHz (96kHz) Digital Output : SPDIF (Sony Philips digital interface) Coaxial No. of programmable tracks : 20 Signal-to-noise ratio : 50 dBA Channel separation : 40 dB (1 kHz) Total harmonic distortion : 150cd/m2 Contrast dark room : 150 :1 LOUDSPEAKERS 2-way bass reflex system Dimension (W x H x D) : 145 x 230 x 210 mm Weight : 2.4 Kg each SUBWOOFER Dimension (W x H x D) : 80 x 270 x 330 mm Weight : 4.4 Kg SERVICE TOOLS Audio signal disc SBC 429.4822 397 30184 Playability test disc SBC 444.4822 397 30245 Test disc 5(disc without errors ) + Test disc 5A (disc with dropout errors, black spots and fingerprints) SBC 426/426A.4822 397 30096 Burn in test disc (65 min. 1kHz signal at -30 dB level without “pause”).4822 397 30155 anti-static table matlarge 1200 x650 x1.25mm 4822 466 10953 small 600 x650 x1.25m 4822 466 10958 anti-static wristband4822 395 10223 connection box (3 press stud connections, 1M) 4822 320 11307 extendible cable (2m, 2M, to connect wristband to connection box) 4822 320 11305 connecting cable (3m, 2M, to connect table mat to connection box) 4822 320 11306 earth cable (1M, to connect any product to mat or to connection box) 4822 320 11308 KIT ESD3 (combining all 6 prior products - small table mat) 4822 310 10671 wristband tester4822 344 13999 AVAILABLE ESD PROTECTION EQUIPMENT 2 - 2 SERVICE MEASUREMENT Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Tuner SW To avoid atmospheric interference all AM-measurements have to be carried out in a Faradays cage. Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz). Ri=50 Aerial replacement Capacitor R=50 Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT S/N and distortion meter e.g. Sound Technology ST1700B Frame aerial e.g. 7122 707 89001 Tuner AM (MW,LW) To avoid atmospheric interference all AM-measurements have to be carried out in a Faradays cage. RF Generator e.g. PM5326 Ri=50 Low pass filter 22kHz L R LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B DUT CD Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3) L.P.F. = 13 th order filter 4822 395 30204 3 - 1 Connections Connecting antennas Connect the supplied AM antenna and FM antenna to the respective terminals. Adjust the position of the antenna for optimal reception. AM Indoor Antenna 1 2 Position the antenna as far as possible from a TV, VCR or other radiation source. FM Indoor Antenna For better FM stereo reception, connect an outdoor FM antenna to the FM AERIAL (FM ANTENNA) terminal. Connecting the control cable Connect the serial port marked “CONTROL CABLE” at the rear of the DVD player to the same port at the rear of the power amplifier with the supplied flat control cable. Connecting a TV You must connect a TV to your DVD micro system in order to view the DVD/VCD playback. IMPORTANT! There are various ways to connect the system to a TV. You only need to make one of the best connections, depending on the capabilities of your TV system. If COMPOMENT video output jacks or S-Video jack is used for video connection, the systems Component setting will need to be set accordingly. Details are shown under “Video Setup Page”. Connect the VIDEO OUTPUT jack to the video input jack on the TV using a video cable (yellow). OR Option 1 Connect the S-VIDEO output jack to the S- Video input jack on the TV using an S-Video cable (not supplied). OR Option 2 Use the component video cables (red/blue/ green) to connect the DVD micro systems COMPONENT video output jacks to the corresponding component video input jacks (or labeled as Pr/Cr Pb/Cb Y or YUV) on the TV. IMPORTANT! The progressive scan video quality is only possible when using Y Pb Pr and a progressive scan TV is required. (Proceed to page 17-18 for detailed Progressive Scan setup.) Option 1 Option 2 Note: To avoid magnetic interference, do not position the front speakers too close to your TV. CONNECTION AND CONTROLS IMPORTANT! The type plate is located at the bottom of the system. Before connecting the AC power cord to the wall outlet, ensure that all other connections have been made. Never make or change any connections with the power switched on. Connecting the speakers 1 2 Connect the two front speakers to the SPEAKERS (8ohm) terminals with two speaker cables. Right speaker to “R” and left speaker to “L”, red wire to “+” and silver wire to “-”. Fully insert the stripped portion of the speaker wire into the terminal as shown. A B Connections Connect the passive subwoofer to the WOOFER OUT (8ohm) terminal with the supplied subwoofer cable by matching the plug types. Notes: Ensure that the speaker cables are correctly connected. Improper connections may damage the system due to short-circuit. For optimal sound performance, use the supplied speakers. Do not connect more than one speaker to any one pair of +/- speaker jacks. Do not connect speakers with an impedance lower than the speakers supplied. Please refer to the SPECIFICATIONS section of this manual. AC power cord Speaker (right) Speaker (left) AM antennaFM antenna Subwoofer 3 - 2 Functional Overview DVD player and power amplifier 1ECO POWER/STANDBY ON B to switch the system on or to Eco power/normal standby mode. 2IR SENSOR point the remote control towards this sensor. 3Control knob 4 / Disc .press the control knob to the left/right to skip to the previous/ next chapter/title/track. Tuner .press the control knob to the left/right to tune to a higher/ lower radio frequency. . press and hold, then release the key to start automatic search for a radio frequency downward/ upward. PROGRAM DVD/VCD/CDpress the control knob upward to enter the program menu. MP3/WMA-CD .press the control knob upward to
